Process of producing effects on textile material



Patented Apr. 27, 1943 raocnss F PRODUCING EFFECTS ON TEXTILE MATERIAL Max Kerth, Bad Soden -in Taunus, and Alfred Link, Frankfort-on-the-Main-Hochst,

many, assignors,

General Aniline &-Film Corporation, N. Y., a corporation of Delaware Gerby mesne assignments, to

New York,

No Drawing. Application August 16, 1939, Serial- No. 290,498. In Germany July 1, 1

5 Claims.

The present invention relates toa process of producing effects on textile material and the material thus obtained.

The present invention relates to a process of producing effects on textile material from cellulose fibers, i. e. fibers of natural or regenerated cellulose or on textile material containing moreover cellulose derivatives, such as cellulose acetate, cellulose propionate or other organic esters or ethers of cellulose or animal fibers such as wool or silk by partial destruction, especially local destruction of the material. The reaction used. for this destruction is similar to those known as carbonizing. It is an object of the presentinvention to produce effects on textile materials by completely removing the cellulosic fibers without alteration in the strength of the animal fibers or of the cellulose derivatives. It is a further object of the invention to apply to the textile material a carbonizing agent whichhas hitherto not been used in the process of producing effects on fabrics and which proves great advantages in comparison with the processes known up to now.

The parts of the tissue of natural or regenerated cellulose subjected to the action of the sulfuric acid esters are decomposed by said treatmentso that they can already be washed out with cold or hot water.. The parts of cellulose ester or cellulose ether of the tissue or the animal fibers are not destroyed.

As organic sulfuric acid esters there may be named ethanol sulfuric acid ester, butanol sulfuric acid ester, isoamyl alcohol sulfuric acid ester, dodecylalcohol sulfuric acid ester.

To produce local destruction of the textile material the organic sulfuric acid ester may be applied by means of a printing paste containing the usual thickening agents, such as tragacant-h, a mixtureof wheat starch and tragacanth, Senegal gum, British gum or a mixture of British gum Various processes are already known for locally treating tissues consisting of natural or regenerated cellulose with an agent capable of splitting of! acid, such as aluminium sulfate, aluminium chloride or sodium bisu-lfate, subjecting the impregnated tissue to the action of dry heat and then eliminating the destroyed fibers by washing and a subsequent mechanical treatment such as beating, rubbing or brushing. For carrying out said process, to the temperatures to be applied which are considerably superior to the temperatures generally applied in the textile industry; furthermore the indispensable mechanical treatment is not only complicated and time-consuming, but readily causes the tissue, and particularly sensitive tissue to be distorted or torn.

Now, we have found that for the application in the embroidery industry the heating to a raised temperature and the mechanical treatment of the tissue made from cellulose fibers or of the mixed tissue made from cellulose fibers and fibers of cellulose esters or cellulose ethers? or animal fibers can be avoided by locally treating with organic sulfuric acid esters the tissue on which-"the design or effect is to be produced and then steaming it in the usual steaming devices.

special devices are required owing and tragacanth.

To obtain colored designs dyestuffs suitable for cellulose esters and cellulose ethers or for animal fibers may be added to the printing pastes. Besides the pastes there may be printed on the tissue at the same time a paste containing vat-dyestuffs or acid sulfuric acid ester-s ot vat dyestuffs or other dyestuffs. For instance on machine printing, with one or several rollers vat-dyestuff with the last roller the paste containacid ester may be applied loseacetate. The material is then steamed as usual. A special operation for fixing the dyestuifsisnot necessary.

Other usual ingredients may be incorporated with the printing pastes, for instance foam-preventing agents, such as pyridine, tributylphosphate or oil of turpentine.

The following examples serve to illustrate the are net; intended to limit it.

invention but they thereto: I, A

(1) A mixed fabric of viscous artificial silk and acetate artificial silk isprinted with a printing paste having the following composition:

Ethanol sulfuric acid ester grams 60 Water do 340 Tragacanth solution of '6 per cent strength grams 600 The material is steamed and washed. Acetat;

silk dyestuffs may likewise be addedto the printing paste.

(2) On a mixed fabric of viscose rayon and acetate artificial silk a three-colored pattern is I v The dyestufi paste No. 1269 (mentioned in Schultz Farbstofltabellen, 7th ed.)

grams 25 Glycerine a. do 50 Water do 365 Wheat-starch-tragacanth thickening do 500 Potash do 60 Sodium-forma1dehyde-sulfoxylate d 50 Total kilo 1 The dyestuff paste No. 1269 (mentioned in Schultz Farbstofitabellen, 'ith ed.)

grams 100 Glycerine ..do 80 Water do 120 Wheat-starch-tragacanth thicken-ing do 500 Potash do 120 Sodium-formaldehyde-sulfoxylate do .80

Total ki1o 1 n-Butanol-sulfuric acid ester grams 70 Water do 410 Wheat-starch-tragacanth thickening do 500 A foam-preventing agent such as oil of turpentine or petroleum grams 20 Total kilo 1 The printed material is dried and steamed for 5 minutes in the rapid. ager, thereupon oxidized, rinsed and soaped in the usual manner.

(3) A mixed fabric of viscose artificial silk and. natural silk is printed with a printing paste having th following composition:

Isoamyl-alcohol-sulfuric acid ester grams Water do 300 Crystal gum thickening 1:2 do 600 After the material has been printed and dried, it is steamed and washed as usual.

If dyestuffs for silk, for instance acid dyestuffs, have to be added to the printing paste, the steaming period is correspondingly prolonged and adapted to the fixing of the dyestufis. Colored designs on a white ground are thus produced.

(4) A half-wool fabric is printed with a printing paste of the following composition:

Dodecyl alcohol sulfuric acid ester grams Water do 360 British gum 1: o 500 A foam-preventing agent such as petroleum, oil of turpentine or a. tertiary phosphate grams 20 Total kilo 1 After the material has been printed and dried, it is steamed and thereupon rinsed. The cotton fabric of the printed portions of the material are destroyed, whereas the woolen fibers remain unaltered.

We claim:

1. A process for producing pattern effects on textile material consisting of cellulose 'fibers and fibers of cellulose derivatives which comprises printing on the material organic sulfuric acid esters and subsequently drying, steaming and rinsing the material.

2. A process for producing pattern effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material aliphatic sulfuric acid esters and subsequently drying, steaming and rinsing the material.

3. A process for producing pattern effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material ethanol sulfuric acid ester and subsequently drying, steaming and rinsing the material.

4. A process for producing pattern effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material iso-amylalcohol sulfuric acid ester and subsequently drying, steaming and rinsing the material.

5. A process for producing pattern effects on textile material consisting of cellulose fibers and fibers of cellulose derivatives which comprises printing on the material dodecylalcohol sulfuric acid ester and subsequently drying, steaming and rinsing the material.

MAXKER'I'H. ALFRED LINK. 

